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元编程:is_mfp

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判定某一类型是否属于类或结构体中的非静态成员函数指针

复制代码
 #include <iostream>

    
 #include <type_traits>
    
  
    
 class A
    
 {
    
 public:
    
     A()
    
     {
    
     a = 10;
    
     }
    
  
    
     int int_print()
    
     {
    
     return a;
    
     }
    
  
    
 public:
    
     int a;
    
 };
    
  
    
  
    
 int main()
    
 {
    
     std::cout << "This Demo: member is_member_function_pointer " << std::endl;
    
  
    
     int* a = new int;
    
     *a = 10;
    
  
    
     std::cout << "*a = " << (*a) << std::endl;
    
  
    
  
    
     A obj_a;
    
  
    

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